Device for polishing curved surfaces.



J. R. RICHARDSON. DEVICE FOR POLISHING OURVED SURFACES. APPLICATIONI'ILBD D120. 29, 1910.

989,291. Patented Apr. 11, 1911.

if {f 20 :12 A J5\ Z //1Q 1% 2 16 10' 2 y 5* 2o .70- 1,. .19 32"? J6 15-16% 1a 46 vide a polishing device that is applicable to JAMES R.RICHARDSON, OF PITTSBURG, PENNSYLVANIA.

DEVICE FOR POLISHING CURVED SURFACES.

Specification of Letters Patent.

Patented A t-.11, 1911.

Application filed December 29, 1910. Serial-No. 599,971.

To all whom it may concern:

Be it-known that 1, JAMES R. RICHARDSON, a-citizeii of the United Statesof America, residing at Pittsburg, in the county of Allegheny and Stateof Pennsylvania, have iiivente'd certain new and useful [in roveinentsin Devices for-Polishing CUI'VQC Surfaces, of which the following is aspecification,

reference being bad therein to the accompanying drawing.

This invention relates to a device for polishing curved surfaces, andmore particularly to a device for polishing and grinding the rolls inrolling mills, whereby the rolls at any or all times can be readily andeasily cleaned, smoothed or trued by grinding away all foreign matter,which frequently collects or adheres to the face or surface of therolls.

The objects of my invention are to provide a device of the above typewith means as will be hereinafter set forth for positively retaining anabrasive material in engagement with the rolls of a housing, and toprovide means whereby the material can be removed and replaced withoutentailing the stoppage of the mill.

Other objects of the invention are to prothe present type of rolls andhousin s, and

vwhich will not interfere with the coder or catcher or any workmenattending the rolls.

Further ob ects of the invention are to ,provide novel adjustableholders for an abrasive material or a lubricant, and'to obviate theexpenseand labor incurred by employing an attendant for cleaning andubrieating rolls.

Still further objects of the invention are to provide a polishing devicethat can 'be zulva ntageously used in connection with hot inilljrolls,and to accomplish the above results by a device that is sim le inconstruction, durable, easy to inst: l and operate, and highly ellicientfor the purposes for which it is intended.

These and such other objects as may hereinafter appear are attained bythe novel construction, combination and arrangement of parts to bepresentlydescribed in detail and then claimed.

Reference will now be had to the drawing, wherein there is illustrated apreferred embodiment of the invention, but it is to be understood thatthe structural elements being 6 to the housingstl.

thereof are susceptible to such modifications as fall within the scopeof the appended claims.

In the drawing:-I ig'ure 1 is a vertical sectional view of a set ofrolls provided with polishing devices, Fig. 2 is a erspective view of ahand operated device, and Fig. 3 is a similar view of a treadle operateddevice.

In the acconipanyin drawing the refercnce numerals 1 and 2 denote, bythe way of an example, two rolls arranged one above the other andsupported by an ordinary type of housing 3 and a bed-plate '4, and inconnection with each "roll I use a polishing or grinding device, thedevices being identical in construction and applicable to either.

side of the rolls, it bcin preferable toadjust the device of the r01? 1by hand and the device of the roll 2 by foot, but it is in thisconnection that I reserve the right to manually operate or use any othermeans for shifting the adjustable levers of the polishing and grindindevices. I

, As the devices are identical, I deem it only necessary to describe thedevice in connection with the upper roll 1. The fconfr'on't ing sides ofthe housings 3 are provided with oppositely disposed angle rails 5,these rails riveted or otherwise connected, as fat The inner ends therails 5 are cut away, as at 7 and the lateral flanges bent upwardly, asat 8 and then outwardly, as at 9 to provide a stop or trap at the innerend of each rail.

Movably mounted upon the rails 5 and limited by the traps thereof arerollers or wheels 10 revoluhlymounted upon the ends of a longitudinalaxle 11. Pivotally moanied upon the axle 11 adjacent to the rollers orwheels 10 are the hangers 12 of achannel-sha ed longitudinal box orholder-13 adaptm to hold one or more piecesl l'of abrasive lfliltelltll,flS emery, sandstone or the like. Graphite or other lubricant can besubstituted for the abrasive material.

"The confronting sides of the housings 3 beneath the rails?) areprovided with studpins 15, and pivotally inonntwliipon said pins areoperating levers 16 having the forward ends thereof curved, as at 17 toengage the rear side'ot' the holder 13 and the forward ends thereofprovided with handles ortreads 18. Each operating lever 16 has adepending tooth 11) adapted to engage a curved rack 20 having the earsthereof conneeted to the housings 3, as at 21, said racks holding theoperating lovers in an adjusted position, with the abrasive material 14;of the holder either in or out of engagement with the roll 1.

From the foregoing it will be observed that I have employed an upper andlower )olisher for a set of rolls, andas each'polisher constitutes anindependent unit, any number of polishers can be employed according toWhere the roll is most worn or cut by sheet metal wearing against it,further that it is not necessary to true the rolls the whole of theirlength or only a portion thereof and further more than one set of rollsis ar 'anged in the housings. The juxtaipositioirof the lower polisherrelatively to the bed-plate permits of. a treadle being moreconvenicntlynsed in connection with the operating levers thereof, whilethe 11 per polisher can be conveniently manipulated by hand. It isapparent that when either set of levers is elevated that the polisherscan he swung out of engagement with illQ'lOllS and by having theoperating mechanism in proximity to the housings, the

'operations of a workman at either side of operating levers pivotallysupported by the I confronting sides of said housings and adapted toretain the abrasive material contained within said holders against therolls to be polished.

2. In a device for polishing rolls, the combination with housings, ofoppositely disposed ;ails secured to the confronting sides of saidhousings adjacent to the rolls to be olished, wheels movably mountedupon aid rails, hangers movably supported by said wheels, a holdercarried by said hangers and adapted to contain an abrasive material toengage the rolls to be polished, operating levers pivotally supported bythe confronting sides of said housings and adapted to retain theabrasive material contained within said holders against the rolls to bepolished, and .n'ieans carried by the confronting sides of said housingsand adapted to lock said operating levers in van adjusted position.

In a polisher for rolls, the combination with housings, of rails.carried by the confronting sides of said housings and having the innerends thereof provided with traps, wheels movably mounted upon said railsand adapted to be limited in their movement by said traps, hangersmovably supported by said wheels, a channel-shaped holder carriedby'said hangers and adapted to contain an abrasive material to engagethe rolls to be polished, ope 'ating levers pivotally connected to theconfronting sides of said housings and having the forward ends thereofcurved to engage the rear side of said housings, and means includingracks adapted to retain said levers in an adjusted position. 4 j

4. In. a polishing device for rolls, the combination with housings,rails carried by the confronting sides of said housings and having theinner ends thereof shaped to provide traps, longitudinal axles, wheelsrevolubly mounted upon the ends of saidaxles and adapted to ride uponsaid. rails and be limited by said traps, hangers carried by each axle,a channel-shaped holder supported by saidhanger adjacent to each axleand adapted to contain an abrasive material to engage the rolls to bepolished, and means carried by the confronting sides of said. housingsand adapted to adjust said holders relatively to the rolls to bepolished. In testimony whereof I afiix my signature in the presence oftwo witnesses.

JAMES R. RICHARDSON. ,VVitnesses: I

KARL -I-I. Bu'rLnn, MAX H. Snonovrrz.

